涡轮钻具四支点推力球轴承组轴向变形的仿真

The simulation of axial distortion of four-fulcrum thrust ball bearing pack of turbodrill

鉴于涡轮钻具装配时轴向间隙的调整对钻具性能和工作寿命有极大影响, 而四支点推力球轴承组与轴向间隙有直接关系, 为此选择求解精度较高的ANSYS软件对轴承组轴向变形进行仿真。以 165mm涡轮钻具轴承组为研究对象, 做ANSYS实体建模, 后处理时结合VisualC++编写程序辅助计算, 得到涡轮钻具四支点推力球轴承组轴向力与轴向变形的关系曲线。研究结果对轴承组的设计改进和涡轮钻具轴向间隙的调整有一定指导意义。

Since the adjustment of axial clearance of assembled turbodrill has great influence on its performance and service life, and the four-fulcrum thrust ball bearing pack has direct relation the axial clearance, a simulation of the axial distortion of the bearing is made by means of ANSYS software. By taking the bearing pack on φ165 mm turbodrill as the subject investigated, a solid model is set up, then a computation is made based on VC++ program, and thereby the relation curve of the axial force and axial distortion of the bearing pack is obtained. The result is meaningful to the improvement of the design of the four-fulcrum thrust ball bearing pack of turbodrill.